.navigate{
    //background-color: #d4dede;
    height: 31px;
}
.navigate a{
    display: block;
    color: #457077;
    text-decoration: none;
    font-size: 18px;
    margin-top: 0px;
}
.navigate .a1{
    margin-left: 200px;
}
.navigate .a2{
    margin-left: 50px;
}
.navigate .exit{
    float: right;
    margin-right: 200px;
}
ul{
    list-style-type:none;
    margin: 0;
    padding:0;
}
li
{
    float: left;
}
.title{
    background-color: #457077;
    margin-top: 0px;
    color:#fff ;
    font-weight: normal;
    height: 52px;
}
.inp_search{
    margin-left: 200px;
    margin-top: 10px;
    width: 650px;
    height: 28px;
}
.btn_search{
    width: 36px;
    height: 36px;
    margin-left: 0px;
    margin-top:1px;
    background-image: url("../img/search_1.png");
    border: white;
}
.btn_create{
    width: 60px;
    height: 36px;
    margin-left: 50px;
}
.table{
    margin-top: 35px;
    margin-left: 230px;
    border: #aaa 1px;
    border-collapse: separate;
    border-spacing: 0px
}
.th,td{
    padding: 5px;
    text-align: center;
    border-color: #ddd;
    border-width: 1px;
    border-style: unset;
}
tr:nth-child(odd) {
    height: 48px;
    background: #f1f1f1;
}
.btn_operate{
    width: 46px;
    height: 26px;
    margin-left: 30px;
}